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OK, I've been hearing for years now that one battery string is best
and maybe two but no more should be used.<br>
<br>
What is the reason for this fear ??? What is the experience with
multiple strings in parallel ??<br>
<br>
If it is because of current sharing of the strings, that shouldn't
be an insurmountable problem if the wiring is done right.<br>
<br>
If it has to do with the possibility of fire, which Darryl
mentioned, seems that series string fuses could mitigate the
possibility of that issue, if because of shorted cells, just like PV
combiners.<br>
<br>
Or maybe it has to do with the trouble of getting into the middle of
a pile of batteries ? Use battery boxes ?<br>
<br>
The strings are in parallel and so they all get the same voltage,
theoretically anyway if the connections are good.<br>
<br>
I would think that the more strings, the LESS stress on individual
batteries, not more. The current in each battery should be less
than it would be I would think.<br>
<br>
So what is the real experience ?? <br>
<br>
Is a battery balancer the answer ??<br>
<br>
Thanks,<br>
boB<br>
<br>
<br>
<br>
<br>
<br>
<blockquote
cite="mid:C956D9BB-02FF-4821-9909-AF40789AFBF1@fafcosolar.com"
type="cite">
<div><br>
On May 31, 2011, at 8:23 PM, "Wayne Irwin" <<a
moz-do-not-send="true" href="mailto:wayne@pureenergysolar.com">wayne@pureenergysolar.com</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
I think the verdict is<b> 12</b> - Rolls 2-YS-31 2430 AH @ 20
HR (one string) and one dry spare in storage is the best case
scenario!<br>
<br>
<font style="" color="#76923c">Wayne Irwin</font><font
style="" color="#76923c">, EE<br>
Director of Engineering<br>
</font><font style="" color="#76923c">
Pure Energy Solar International Inc. </font><font style=""
color="#76923c"><br>
</font><font style="" color="#76923c">State Licensed Solar
Contractor</font><font style="" color="#76923c"><br>
</font><font style="" color="#76923c">
License # CVC56695 </font><br>
<a moz-do-not-send="true"
href="mailto:Wayne@PureEnergySolar.com">Wayne@PureEnergySolar.com</a>
<br>
<a moz-do-not-send="true" href="http://pureenergysolar.com">http://pureenergysolar.com</a>
<br>
<font style="" color="#76923c">352 377-6527 Office</font><font
style="" color="#76923c"><br>
</font><font style="" color="#76923c">352 336-3299 Fax</font><font
style="" color="#76923c"><br>
</font><font style="" color="#76923c">352 316-1637 Cell</font></div>
</blockquote>
</blockquote>
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